Text preview for : Pioneer-GMX722_822 caramp.pdf part of Pioneer GMX722, GMX822 car amplifier
Back to : Pioneer-GMX722_822 caramp | Home
Service Manual
BRIDGEABLE POWER AMPLIFIER
ORDER NO.
CRT2187
GM-X822
GM-X722
X1R/UC
X1R/UC,ES,EW
CONTENTS
1. 2. 3. 4. 5. SAFETY INFORMATION ............................................2 EXPLODED VIEWS AND PARTS LIST .......................3 SCHEMATIC DIAGRAM .............................................8 PCB CONNECTION DIAGRAM ................................12 ELECTRICAL PARTS LIST ........................................15 6. ADJUSTMENT..........................................................19 7. GENERAL INFORMATION .......................................20 7.1 IC .........................................................................20 7.2 DISASSEMBLY ...................................................21 7.3 BLOCK DIAGRAM ..............................................22 8. OPERATIONS AND SPECIFICATIONS.....................23
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE, PTE.LTD. 501 Orchard Road, #10-00, Wheelock Place, Singapore 238880 C PIONEER ELECTRONIC CORPORATION 1998
K-ZEB. FEB. 1998 Printed in Japan
GM-X822,X722
1. SAFETY INFORMATION
UC model
CAUTION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely; you should not risk trying to do so and refer the repair to a qualified service technician. WARNING Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5). When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with the solder. Also, when soldering do not inhale any smoke or fumes produced.
2
GM-X822,X722
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
10 11 1
9 3
2
4
7 5 8
8
6
Fig. 1
3
GM-X822,X722
NOTE: - Parts marked by "*"are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to mark on the product are used for disassembly. - PACKING SECTION PARTS LIST
GM-X822 X1R/UC HEA0044 BYC40P180FZK HEG0011 HLP0001 HEG0013 HHG0164 HHL0164 HHP0025 HRD0060 Not used *HRY1070 Not used Part No. GM-X722 X1R/UC X1R/ES HEA0044 HEA0044 BYC40P180FZK BYC40P180FZK HEG0011 HEG0011 HLP0001 HLP0001 HEG0013 HEG0013 HHG0165 HHL0165 HHP0025 HRD0061 Not used Not used ARY1048 HHG0166 HHL0166 HHP0025 HRD0062 HRD0069 Not used Not used
Mark No. * 1 2 3 4 5 6 7 8 9-1 9-2 10 11
Description Screw Assy Screw(x4) Polyethylene Bag Wrench Polyethylene Bag Carton Contain Box Protector(x2) Owner's Manual Owner's Manual Warranty Card Card
X1R/EW HEA0044 BYC40P180FZK HEG0011 HLP0001 HEG0013 HHG0167 HHL0167 HHP0025 HRD0063 Not used HRY1087 Not used
- Owner's Manual
Model GM-X822/X1R/UC GM-X722/X1R/UC GM-X722/X1R/ES GM-X722/X1R/EW Part No. HRD0060 HRD0061 HRD0062 HRD0069 HRD0063 Language English, French English, French English, Spanish Arabic, Portuguese(B) English, French, German, Dutch, Spanish, Italian
4
GM-X822,X722
2.2 EXTERIOR
Fig. 2
5
GM-X822,X722
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Screw Screw(M3x12) Screw(M3x14) Sheet Screw Screw Screw Washer Case Heat Sink Window Lighting Conductor Amp Unit Screw Screw Clamper Terminal(CN904) Plug(CN551) Plug(CN501) Connector(CN503) Connector(CN552) Cord(CN153) Cord(CN253) Cord(CN502) Cord(CN553) Holder Buss Bar Buss Bar Buss Bar Buss Bar Clip Separator Spacer Heat Sink Heat Sink Part No. BMZ30P250FZK CBA1323 CBA1382 CNM5854 HBA0006 HBA0011 HBA0012 HBF0005 HNB0037 HNR0078 HNS0053 HNV0013
See Contrast table(2)
Mark No. Description 36 Clamper 37 Spacer 38 Screw 39 Fan Motor 40 Fuse(20A) 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 Pin Jack(CN801) Pin Jack(CN851) Terminal(CN101) Fuse Holder(CN902) Terminal(CN901) Holder Holder Spacer Screw Film Film Plate Unit Light Pipe Unit Plate Unit Sheet Unit Panel Unit Plate Panel Unit Screw LED(D902,903) Transistor(Q113,114,213,214) Transistor(Q115,116,215,216) Thermistor(TH651,652) FET(Q963-966) Transistor(Q107,207) Diode(D961) Diode(D962) Thermistor(TH901) Screw
Part No. HNV0015 HNV3975 BMZ30P250FZK CXM1102 HEK0020 HKB0002 HKB0002 HKE0010 HKE0012 HKE0014 HNC0027 HNC0028 HNV0010 PPZ30P060FZK
See Contrast table(2) See Contrast table(2) See Contrast table(2)
BMS30P060FZK BMS30P080FMC CEF1009 CKF1059 CKS1037 CKS1039 CKS3799 CKS3800 HDE5500 HDE5500 HDE5501 HDE5502 HNC0029 HNC0043 HNC0045 HNC0051 HNC0053 HNC0054 HNM0047
See Contrast table(2)
HXA0201
See Contrast table(2) See Contrast table(2) See Contrast table(2)
HNS0066
See Contrast table(2)
SMZ30H080FCR
See Contrast table(2))
2SC5099 2SA1907 CCX1013 IRFIZ44N 2SC1568 FML22S FML22R CCX1027 BSZ30P050FZK
HNR0081 HNR0082
6
GM-X822,X722
(2) CONTRAST TABLE
GM-X822/X1R/UC, GM-X722/X1R/UC, GM-X722/X1R/ES and GM-X722/X1R/EW are constructed the same except for the following: Part No. Mark No. 13 33 50 51 52 54 55 56 58 60 Symbol and Description Amp Unit Spacer Film Film Plate Unit Plate Unit Sheet Unit Panel Unit Panel Unit LED(D902,903) GM-X822 X1R/UC HWH0075 HNM0053(x2) CNM5856 CNM5855 HXA0115 HXA0206 HXA0266 HXA0270 HXA0273 NSPWF50S(AQ) X1R/UC HWH0076 HNM0053(x2) Not used Not used HXA0111 HXA0203 HXA0126 HXA0271 HXA0272 NSPWF50S(VQ) GM-X722 X1R/ES HWH0074 HNM0053(x1) Not used Not used HXA0111 HXA0203 HXA0118 HXA0271 HXA0272 NSPWF50S(VQ) X1R/EW HWH0073 HNM0053(x2) Not used Not used HXA0111 HXA0203 HXA0118 HXA0271 HXA0272 NSPWF50S(VQ)
7
1
2
3
4
GM-X822,X722
3. SCHEMATIC DIAGRAM
3.1 AMP UNIT
A
Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".
A
AMP PCB
-7.6dBs
-10dBs
-10.2dBs
B
AUDIO PCB
C
BASS PCB
B
15.5V -15.5V
AMP UNIT Consists of AMP PCB AUDIO PCB BASS PCB
-35V -35-30V
C
30V -30V
D
8
A
1 2
3
4
5
6
7
8
GM-X822,X722
A
-14.3dBs
B
21.3dBs
B
C
0.1V 3.2V 3.5V 3.8V 1.9V 5.0V 5.0V 2.4V 2.4V 0.2V 2.6V
0.2V 0V 5.0V 0V
0.3V
0.2V 14.4V 14.3V 10.7V
14.4V
6.3V
D
Fig. 3
5 6 7
A
8
9
1
2
3
4
GM-X822,X722
3.2 AUDIO PCB AND BASS PCB
A
B
C
D
B
AUDIO PCB
C
BASS PCB
A CN501
A CN551
Fig. 4
10
B C
1 2 3 4
GM-X822,X722
11
1
2
3
4
GM-X822,X722
4. PCB CONNECTION DIAGRAM
A
4.1 AMP UNIT
A
AMP PCB
FAN MO
NOTE FOR PCB DIAGRAMS
1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 2. Viewpoint of PCB diagrams
Connector Capacitor
B
SIDE A
P.C.Board
Chip Part
SIDE B
INPUT
B
CN502
PREOUT
C
D
12
A
1 2
3
4
5
6
7
8
GM-X822,X722
A
AN MOTOR
B
C
C
CN553
D
Fig. 5
A
5 6 7 8
13
1
2
3
4
GM-X822,X722
A
B
A
AUDIO PCB
CN501
C
CN552
B
Fig. 6
C
C
BASS PCB
A
CN551
B
CN503
D
Fig. 7
14
B C
1 2 3 4
GM-X822,X722
5. ELECTRICAL PARTS LIST
NOTE:
- Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name --- -------------------------------------------------AMP UNIT Consists of AMP PCB AUDIO PCB BASS PCB
Unit Number : HWH0075 (GM-X822/X1R/UC) : HWH0076 (GM-X722/X1R/UC) : HWH0074 (GM-X722/X1R/ES) : HWH0073 (GM-X722/X1R/EW) Unit Name : Amp Unit
Part No. -------------------------
=====Circuit Symbol and No.===Part Name --- -------------------------------------------------Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q D D D D D D D D D D D D D D D D D D D D D D D D D D L 612 613 651 652 653 654 655 656 657 658 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 969 970 101 102 103 201 202 203 601 602 651 652 654 658 659 901 902 903 954 955 956 957 958 959 960 961 962 963 851 Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor FET FET FET FET Transistor Transistor Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode LED LED Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Ferri-Inductor
Part No. ------------------------2SC2458 DTA124ES 2SA1048 2SC2458 2SC2458 2SC2458 2SA1048 2SC2458 2SA1048 2SB1243 2SA1048 2SC2458 2SC2458 2SA1048 2SA1048 DTA124ES 2SC2458 2SD1864 2SD1919 2SD1919 2SB1277 2SB1277 IRFIZ44N IRFIZ44N IRFIZ44N IRFIZ44N 2SB1566 2SD2395 HZS6L(B1) 1SS133 1SS133 HZS6L(B1) 1SS133 1SS133 1SS133 1SS133 1SS133 HZS7L(B2) 1SS133 1SS133 1SS133 RM4Z-LFK5
See Conttast table(2) See Conttast table(2)
A B C
MISCELLANEOUS IC IC IC IC IC IC IC IC IC IC IC Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q 501 502 503 504 551 552 651 801 851 852 951 101 102 103 104 105 106 107 111 112 113 114 115 116 201 202 203 204 205 206 207 211 212 213 214 215 216 601 602 611 IC IC IC IC IC IC IC IC IC IC
NJM2068S NJM2068S NJM2068S NJM2068S NJM2068S NJM2068S PA2027A NJM2068S NJM2068S NJM2068S UPC494C 2SK389 2SA992 2SA992 2SC1845 2SA992 2SC1845 2SC1568 2SC3421 2SA1358 2SC5099 2SC5099 2SA1907 2SA1907 2SK389 2SA992 2SA992 2SC1845 2SA992 2SC1845 2SC1568 2SC3421 2SA1358 2SC5099 2SC5099 2SA1907 2SA1907 2SD1768S 2SD1768S 2SC2458
IC Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor
HZS12L(A3) 1SS133 1SS133 HZS16L(1) HZS16L(1) ERA92-02VH ERA92-02VH FML22S FML22R 1SS133 CTF1007
15
GM-X822,X722
=====Circuit Symbol and No.===Part Name --- -------------------------------------------------L L L L T TH TH TH TH S VR VR VR VR VR VR VR EF EF 852 901 951 952 951 651 652 653 901 501 101 201 501 503 551 552 951 951 952 Ferri-Inductor Choke Coil 50mH Choke Coil 200mH Choke Coil 200mH Transformer Thermistor Thermistor Thermistor Thermistor Switch Semi-fixed 1.5k(B) Semi-fixed 1.5k(B) Variable Resistor 20k(E) Variable Resistor 10k(A) Variable Resistor 10k(C) Variable Resistor 50k(C) Semi-fixed 100k(B) Capacitor Capacitor
Part No. ------------------------CTF1007 CTH1144 CTH1211 CTH1211 CTT1081 CCX1013 CCX1013 CCX1035 CCX1027 CSH1029 CCP1314 CCP1314 CCS1266 CCS1265 CCS1268
See Conttast table(2)
=====Circuit Symbol and No.===Part Name --- -------------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 228 229 234 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 551 552 553 554 555 556 557 558 565 566 601 602 603 604 605 606 607 608 611 612 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 0.22 0.22
Part No. ------------------------CCN1071 CCN1071 RD1/2PM100J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU472J RD1/4PU472J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU123J RD1/4PU123J RD1/4PU562J RD1/4PU562J RD1/4PU123J RD1/4PU123J RD1/4PU222J RD1/4PU222J RD1/4PU121J RD1/4PU121J RD1/4PU331J RD1/4PU331J
See Conttast table(2) See Conttast table(2)
CCP1325 CCG-081 CCG-081
RESISTORS R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 101 102 103 106 107 108 111 112 113 114 115 116 117 118 121 122 123 124 125 126 127 128 129 134 201 202 203 206 207 208 211 212 213 214 215 216 217 218 221 222 223 224 225 226 227 0.22 0.22 RD1/4PU223J RD1/4PU101J RD1/4PU471J RD1/4PU472J RD1/4PU222J RD1/4PU101J RD1/4PU561J RD1/4PU333J RD1/4PU273J RD1/4PU432J RD1/4PU390J RD1/4PU512J RD1/4PU222J RD1/4PU221J RD1/4PU470J RD1/4PU470J RD1/4PU221J RD1/2PM100J RD1/2PM100J RD1/2PM100J RD1/2PM100J CCN1071 CCN1071 RD1/2PM100J RD1/4PU223J RD1/4PU101J RD1/4PU471J RD1/4PU472J RD1/4PU222J RD1/4PU101J RD1/4PU561J RD1/4PU333J RD1/4PU273J RD1/4PU432J RD1/4PU390J RD1/4PU512J RD1/4PU222J RD1/4PU221J RD1/4PU470J RD1/4PU470J RD1/4PU221J RD1/2PM100J RD1/2PM100J RD1/2PM100J RD1/2PM100J
RD1/4PU182J RD1/4PU182J RD1/4PU221J RD1/4PU221J
See Conttast table(2) See Conttast table(2)
RD1/4PU124J RD1/4PU124J RD1/4PU124J RD1/4PU124J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU103J RD1/4PU103J RD1/4PU104J RD1/4PU822J RD1/4PU472J RD1/4PU222J RD1/4PU472J RD1/4PU472J RD1/4PU221J RD1/4PU102J RD1/4PU473J RD1/4PU103J RD1/4PU103J RD1/4PU222J RD1/4PU472J RD1/4PU272J RD1/4PU272J RD1/4PU103J RD1/4PU472J RD1/4PU473J RD1/4PU221J RD1/4PU152J
16
GM-X822,X722
=====Circuit Symbol and No.===Part Name --- -------------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 671 672 673 674 675 676 677 678 801 802 803 804 807 808 810 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 902 951 952 953 954 956 957 958 959 960 963 964 965 966 967 968 969 970 971 972 973 976 977 978 979 980 981 982 983 984 985 988 989 992 993 994 995 996 997
Part No. ------------------------RD1/4PU472J RD1/4PU101J RD1/4PU272J RD1/4PU272J RD1/4PU272J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU821J RD1/4PU821J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU471J RD1/4PU471J RD1/4PU223J RD1/4PU223J RD1/4PU222J RD1/4PU222J RD1/4PU392J RD1/4PU392J RN1/4PC1002D RN1/4PC1002D RN1/4PC1002D RN1/4PC1002D RN1/4PC7501D RN1/4PC7501D RN1/4PC7501D RN1/4PC7501D RD1/4PU391J RD1/4PU103J RD1/4PU223J RD1/4PU392J RD1/4PU183J RD1/4PU153J RD1/4PU102J RD1/4PU512J RD1/4PU472J RD1/4PU101J RD1/4PU472J RD1/4PU153J RD1/4PU182J RD1/4PU223J RD1/4PU182J RD1/4PU123J RD1/4PU472J RD1/4PU472J RD1/4PU363J RD1/4PU124J RD1/4PU124J RD1/4PU332J RD1/4PU221J RD1/4PU332J RD1/4PU332J RD1/4PU472J RD1/4PU472J RD1/4PU470J RD1/4PU470J RD1/4PU470J RD1/4PU470J RS1/2PMF220J RS1/2PMF220J RD1/4PU472J RD1/4PU472J RD1/4PU681J RD1/4PU681J RS1/2PMF220J RD1/4PU681J
=====Circuit Symbol and No.===Part Name --- -------------------------------------------------R 998
Part No. ------------------------RD1/4PU681J
CAPACITORS C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 101 102 103 104 105 106 107 108 109 111 112 113 114 115 201 202 203 204 205 206 207 208 209 211 212 213 214 215 501 502 503 504 505 506 551 552 553 554 555 556 557 651 652 653 654 655 656 657 659 660 661 662 801 802 803 804 805 851 852 853 854 855 856 857 858 220µF/10V CEAS100M16 CQPA221G2A CQPA102G2A CFTLA104J50 CEAS101M16 CMA150J2H CFTLA104J50 CMA330J2H CFTLA104J50 CMA101J2H CMA101J2H CFTLA333J50 CQPA102G2A CQPA471G2A CEAS100M16 CQPA221G2A CQPA102G2A CFTLA104J50 CEAS101M16 CMA150J2H CFTLA104J50 CMA330J2H CFTLA104J50 CMA101J2H CMA101J2H CFTLA333J50 CQPA102G2A CQPA471G2A CCPUSL470J50 CCPUSL470J50 CFTLA104J50 CFTLA104J50 CFTLA104J50 CFTLA104J50 CFTLA333J50 CFTLA333J50 CEAS4R7M50 CEAS4R7M50 CFTLA334J50 CFTLA334J50 CEAS220M50 CCH1036 CFTLA103J50 CFTLA103J50 CEAS100M16 CEAS100M16 CEAS101M16 CFTLA103J50 CEAS220M50 CCH1183 CFTLA103J50 CFTLA103J50 CQMA471J50 CQMA471J50 CEAS100M16 CEAS100M16 CCPUSL470J50 CQMA471J50 CQMA471J50 CEAS100M16 CEAS100M16 CFTLA103J50 CFTLA103J50 CCPUSL470J50 CCPUSL470J50
470µF/16V
17
GM-X822,X722
=====Circuit Symbol and No.===Part Name --- -------------------------------------------------C C C C C C C C C C C C C C C 859 860 901 902 903 951 952 953 954 955 956 957 959 961 962
Part No. ------------------------CCPUSL470J50 CCPUSL470J50 CFTLA104J50 CFTLA224J50 CFTLA104J50 CEAS100M16 CEAS221M10 CQMAQ102J50 CFTLA105J50 CEAS101M16 CFTLA564J50 CFTLA564J50 CFTLA104J50 CFTLA273J50 CFTLA273J50
=====Circuit Symbol and No.===Part Name --- -------------------------------------------------C C C C C C C C C C C C C 963 964 965 966 967 970 971 972 973 974 975 976 977 4700µF/16V
Part No. ------------------------CCH1310 CEAS332M35 CEAS332M35 CEAS332M35 CEAS332M35 CEAS470M16 CEAS470M16 CEAS101M16 CEAS101M16 CEAS331M50 CEAS331M50 CQMAQ102J50 CCH1310
4700µF/16V
(2) CONTRAST TABLE
GM-X822/X1R/UC, GM-X722/X1R/UC, GM-X722/X1R/ES and GM-X722/X1R/EW are constructed the same except for the following: Part No. Symbol and Description D902,903 LED S551 Switch S951 Switch VR552 Variable Resistor 50k(C) R553,554 R563,564 R565,566 R567,568 R955 GM-X822 X1R/UC NSPWF50S(AQ) Not used Not used CCS1263 RD1/4PU822J Not used RD1/4PU222J Not used Not used X1R/UC NSPWF50S(VQ) Not used Not used Not used Not used RD1/4PU333J RD1/4PU222J Not used Not used GM-X722 X1R/ES NSPWF50S(VQ) CSH1021 HSH-156 CCS1263 RD1/4PU822J Not used Not used RD1/4PU222J RD1/4PU105J X1R/EW NSPWF50S(VQ) CSH1021 HSH-156 CCS1263 RD1/4PU822J Not used Not used RD1/4PU222J RD1/4PU105J
18
GM-X822,X722
6. ADJUSTMENT
No. Item 1 Idling current (adjustment) 2 DC-DC converter voltage (adjustment) Conditions Input ; adjust 30 seconds after 1k terminate power is switched on, and within 20 seconds. Input ; adjust 30 seconds after 1k terminate power is switched on, and within 20 seconds. Adjustment point VR101(Lch) VR201(Rch) VR951 Specifications mV Meter(1) : 12mV±3mV mV Meter(2) : 30V±3V
- Connection Diagram
+14.4V DC Regulated Power Supply
GND SYSTEM CONTROL POWER
4 (2W) 4 (2W) SPEAKER OUTPUT
VR951
VR201 mV Meter (1) Q213 mV Meter (2) GND R228
E C
VR101 R128 mV Meter (1)
AMP UNIT
1k R L 1k
Fig. 8
19
GM-X822,X722
7. GENERAL INFORMATION
7.1 IC
PA2027A
VCC
1
Transient voltage detector
zz+
16 IN1
-
2V
Stby
2
Bandgap
zz+
15 IN2
-
2V
DET1
3 - zz +
Circuit motion:on
zz+
14 IN3
-
2V
DET2
4
50µA
13 Cont_V
DET_R
5
4.7k
12 Filter
Bandgap:on Switch:on
GND
6
zz +
-
+ zz 2V
11 Vs_out
2V
NC
7
0.13V 20µA
10 TC
NC
8
+ -
5.6V S R
+ Q Oneshot (1µsec)
+ -
9
Mute_out
2V
20
GM-X822,X722
7.2 DISASSEMBLY
- Removing the Case and Panel Units
1. Remove eight screws A and then remove Case. 2. Remove two screws B and seven screws E and then remove Panel Units.
Fig. 9
- Removing the Amp Unit
1. Remove eleven screws C. 2. Remove four screws D. 3. Remove Amp Unit.
Fig. 10
21
GM-X822,X722
7.3 BLOCK DIAGRAM
A
B
C
Fig. 11
22
GM-X822,X722
8. OPERATIONS AND SPECIFICATIONS
- CONNECTION DIAGRAM
(1) GM-X822/X1R/UC
Connection Diagram
Fuse (30 A) Special red battery wire [RD-223] (sold separately). After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery. Fuse (30 A) Ground wire (black) [RD-223] (sold separately). Connect to metal body or chassis.
Grommet
RCA input
Amplifier with RCA input jacks
Connecting wires with RCA pin plugs (sold separately). Car stereo with RCA output jacks External Output RCA output jack RCA input jack
Reverse side
Fuse (20 A) × 2
Speaker output terminal See the "Connecting the Speaker wires" section for speaker connection instructions.
Blue [RD-223] (sold separately). Connect the male terminal of this wire to the blue wire of the car stereo (SYSTEM REMOTE CONTROL). The female terminal can be connected to the auto-antenna relay control terminal. If the car stereo does not have a system remote control terminal, connect the male terminal to the power terminal through the ignition switch.
23
GM-X822,X722
24
Setting the Unit
Cut Off Frequency Control
If the LPF (LPF/HPF) select switch is set to LPF (or HPF), you can select a cut off frequency from 50 to 120Hz. The power indicator lights when the power is switched on.
Gain Control
Power Indicator
If the sound level is too low, even when the volume of the car stereo used along with this power amplifier is turned up, turn gain control on the back of the power amplifier clockwise. If the sound distorts when the volume is turned up, turn the gain control counter-clockwise.
· Set the gain control to "NORMAL" when this amplifier is connected to a Pioneer car stereo with RCA output jacks. If the sound level is too low or distorts, adjust the gain control. · Adjust the gain control to the "MIN" side of "NORMAL" when this amplifier is connected to a Pioneer car stereo (High voltage output type).
Bass Boost Level Control
Bass boost level control can boost the level around the frequency selected by the bass boost frequency control from 0 to 12 dB.
LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch
Set the LPF/HPF select switch as follows according to the type of speaer that is connected to the speaker output connector and the car stereo sytem: LPF/HPF Select Switch
LPF (left) OFF (center) HPF (right)
Audio frequency range to be output
* -- 50 to 120 Hz Full range * 50 to 120 Hz --
Speaker Type
Sub-woofer Full range Full range
Remarks
Connect a sub-woofer.
Bass Boost Frequency Control
* See the "Cut Off Frequency Control" section.
You can select a bass boost frequency from 40 to 120 Hz with the bass boost control.
Use if you want to cut the very-low-frequency range* because it is not necessary for the speakers you are using.
· Bass Boost Level Control and Bass Boost Frequency Control can be adjusted only when the LPF/HPF select switch is set to a position other than HPF .
Connecting the Unit
4. Connect the wires to the terminal.
· Fix the wires securely with the terminal screws.
Connecting the PowerTerminal
· Always use the special red battery and ground wire [RD-223], which is sold separately. Connect the battery wire directly to the car battery positive terminal (+) and the ground wire to the car body. Power terminal GND terminal System remote control terminal
Connecting the Speaker Output Terminals
1. Expose the end of the speaker wires by about 10 mm and twist using nippers or a cutter.
Twist
1. Pass the battery wire from the engine compartment to the interior of the vehicle.
System remote control wire (Blue) Ground wire
10 mm
· After making all other connections to the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery. Engine Fuse (30A) compart- Interior of the vehicle ment
2. Attach lugs to speaker wire ends. Lugs not supplied.
· Use pliers, etc., to crimp lugs to wires. Battery wire Lug
Fuse (30A) Drill a 14-mm Positive terminal hole into the Insert the O-ring rubber vehicle body. grommet into the vehicle body. Speaker wire
3. Connect the speaker wires to the speaker output terminals.
· Fix the speaker wires securely with the terminal screws.
2. Twist the battery wire, ground wire and system remote control wire.
Terminal screw
Twist
3. Attach lugs to wire ends. Lugs not supplied.
· Use pliers, etc., to crimp lugs to wires.
Speaker output terminal
Speaker wire
Lug
Ground wire
Lug
Battery wire
GM-X822,X722
25
GM-X822,X722
26
Three-channel mode, two-way system
Connecting the Speaker wires Setting the Filter Constant
L2 C2
Band-pass filter (combination of low-pass filter and high-pass filter for mid-bass/mid): 6 dB/octave
0dB 6dB
C1
Mid-high (Left) Woofer (Mono)
L1 6dB 0dB f CL 2 f CL f CH 2f CH
Low-pass filter (for subwoofer/woofer): 6 dB/octave
The speaker output mode can be two-channel (stereo), one-channel (mono), or threechannel (stereo + mono). Connect the speaker leads to suit the mode according to figures on the following pages.
L1 C1
Mid-high (Right)
fC 2f C f
· When connecting to the speaker input, do not connect the RCA output. · When connecting to the RCA input, do not connect the speaker input.
Two-channel mode (stereo)
Three-channel mode, three-way system
High-pass filter (for mid/mid-high): 6 dB/octave
C1 0dB 6dB
C1
High/mid-high (Left) Mid/mid-bass (Left) Woofer/sub-woofer (Mono)
fC 2 fC f
(Left) Speaker (Right)
L2 C2 L1
· A multi-channel system can be set up using a combination of filters. The inductance (L) and capacitance (C) will determine the frequency (fc) that the speaker will reproduce. Refer to the chart below to determine the components required. · Use the capacitors specified. Non-polarized capacitors rated at over ±25 V should be used for C1 and C2 in the diagram. Because of the voltage output of the amplifier, it is very important to use non-polarized capacitors rated at or over 25 V. This will prevent a safety hazard.
L2
C2
Mid/mid-bass (Right) High/mid-high (Right)
One-channel mode (mono)
Component Guide
Speaker load Impedance
fc (Hz) 50 80 125 200 320 500 800 1,250 2,000 3,200 5,000 8,000 10,000 6.4 4.0 2.5 1.6 1.0 0.64 0.4 0.25 0.16 0.1 0.06 0.04 0.03
2
L (mH) C (µF) 1,600 1,000 640 400 250 160 100 64 40 25 16 10 8
4
L (mH) 12.70 8.00 5.10 3.20 2.00 1.30 0.80 0.50 0.30 0.20 0.13 0.08 0.06 C (µF) 800.0 500.0 300.0 200.0 125.0 80.0 50.0 30.0 20.0 12.5 8.0 5.0 4.0
8
L (mH) 25.50 16.00 10.00 6.40 4.00 2.60 1.60 1.00 0.64 0.40 0.26 0.16 0.13 C (µF) 400.0 250.0 160.0 100.0 62.0 40.0 25.0 16.0 10.0 6.2 4.0 2.5 2.0
Speaker (Mono)
Three-channel mode (stereo + mono)
The power amplifier is basically a twochannel/one-channel bridgeable amplifier, but three channels can be achieved by combining the stereo and mono modes using inductors and capacitors.
· Inductors (L1 and L2 in the diagrams) act as low-pass filters. Capacitors (C1 and C2 in the diagrams) act as high-pass filters. Inductors (L) are used for the woofer/sub-woofer, and capacitors (C) are used for the high/mid-high. · Remember when bridging an amplifier it will see only half of the original speaker impedance. Therefore, you must use speakers that have ratings of 4 ohms or higher. If you use speakers that have lower impedance ratings it may cause damage to the amplifier. · When the inductors and capacitors are connected to the speaker wires, secure or solder them so they cannot be pulled loose. Tape or use heat shrink on the joints to prevent short circuits.
GM-X822,X722
SPECIFICATIONS
Power source .............................................................................................................. 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system ............................................................................................................................................ Negative type Current consumption ........................................................................................................ 22.5 A (at continuous power, 4 ) Average current drawn* ............................................................................................................ 6.5 A (4 for two channels) 11.3 A (4 for one channel) Fuse ............................................................................................................................................................................ 20 A × 2 Dimensions ........................................................................................................................ 255 (W) × 61 (H) × 260 (D) mm [10 (W) × 2-3/8 (H) × 10-1/4 (D) in.] Weight ........................................................................................................ 3.4 kg (7.5 lbs.) (Leads for wiring not included) Maximum power output ........................................................................................................ 160 W × 2 / 480 W × 1 (EIAJ) Continuous power output ............................................................ 80 W × 2 (at 14.4V, 4 , 20 -- 20,000 Hz, 0.04% THD) 240 W × 1 (at 14.4V, 4 , 20 -- 20,000 Hz, 0.4% THD) 120 W × 2 (at 14.4V, 2 , 20 -- 20,000 Hz, 0.4% THD) Load impedance ............................................................................................................................ 4 (1 -- 8 allowable) (Bridge connection: 2 -- 8 allowable) Frequency response ............................................................................................................ 10 -- 50,000 Hz (+0 dB, 1 dB) Signal-to-noise ratio ...................................................................................................................... 102 dB (IHFA network) Distortion ............................................................................................................................................ 0.004% (10 W, 1 kHz) Separation ........................................................................................................................................................ 70 dB (1 kHz) Low pass filter .................................................................................................................... Cut off frequency: 50 -- 120 Hz Cut off slope: 12 dB/oct High pass filter .................................................................................................................. Cut off frequency: 50 -- 120 Hz Cut off slope: 12 dB/oct Bass boost (GM-X822) .................................................................................................................. Frequency: 40 -- 120 Hz Gain: 0 -- 12 dB Bass boost (GM-X722) .............................................................................................................................. Frequency: 60 Hz Gain: 0 -- 12 dB Input level / impedance .......................................................................................................................... 0.4 -- 6.5 V/22 k
Note:
· Specifications and the design are subject to possible modification without notice due to improvements.
*Average current drawn
· The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.
27